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How-To Geek

This DIY add-on switches a standard fog machine from always-on to motion-activated–increase your savings and spook factor at the same time.

Courtesy of tinker Greg, this modification involves a new relay and motion sensor mounted onto the existing switch of a store-bought fog machine. When the motion-sensor detects motion the fog machine releases a burst of fog for 5 seconds and then disarms itself for 10 seconds–long enough for the startled victim to move on and for the machine to recharge for the next passerby.

Check out the video above to see it in action and then hit up the link below to see the project’s build guide.

Jason Fitzpatrick is warranty-voiding DIYer and all around geek. When he's not documenting mods and hacks he's doing his best to make sure a generation of college students graduate knowing they should put their pants on one leg at a time and go on to greatness, just like Bruce Dickinson. You can follow him on Google+ if you'd like.

Published 10/25/12

GEEK TRIVIA

DID YOU KNOW?

The Zamboni machine, the tractor-like device used to refinish ice rinks, was invented by Frank Zamboni; an ice salesman who, thanks to the advent of electric refrigerators, went into the ice rink business.